. >>> the final push has president obama and governor romney barnstorming seven critical swing states across the country in the hunt for 270 electoral votes. the arguments -- >> the unemployment rate is falling. manufacturing is coming back to our shores. our assembly lines are humming again. >> the passion -- >> this is an election about big things, about big choices. >> and the ground game. the critical effort to deliver key voting groups to the polls. this morning, we hear about it all from key figures on the ground in these states, all-important ohio. can romney win the white house without it? we're ask the state's republican governor, john kasich. also joining us, wisconsin's republican governor, scott walker, and colorado's democratic governor, john hickenlooper. analysis on what will tip the scales in this historically tight presidential race. from our roundtable, from msnbc, rachel maddow, "new york times" columnist, david brooks, "washington post" columnist, e.j. dionne, former ceo of hewlett-packard, now vice chair of the national republican senatorial committee, carly fiori